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+//CHAPTER 8- DIRECT CURRENT MACHINES
+//Example 24
+
+disp("CHAPTER 8");
+disp("EXAMPLE 24");
+
+//This example is same as example 19
+
+//VARIABLE INITIALIZATION
+v=250;                            //in Volts
+r_a=0.5;                          //in Ohms
+r_f=250;                          //in Ohms
+N1=600;                           //in rpm
+I_l=21;                           //in Amperes
+r=250;                            //in Ohms
+
+//SOLUTION
+I_f1=v/r_f;
+I_a1=I_l-I_f1;
+I_a2=2*I_a1;
+E_b1=v-(I_a1*r_a);
+E_b2=v-(I_a2*r_a);
+ratio=(r+r_f)/r_f;
+N2=(ratio*N1*E_b2)/E_b1;
+N2=round(N2);
+disp(sprintf("The new speed is %d rpm",N2));
+
+//END